See also:

Switching the display
Press the “TEXT” button. Each time the button is pressed, the display changes in the following order: Elapsed time → Folder name → File name → Album title (MP3 only) → Tr ...

Adjusting sound quality and volume balance
Press the “TUNE/SEL” knob to enter iPod menu mode. Pressing the “TUNE/SEL” knob changes sound modes.  - About iPod • Apple is not responsible for the operation of this device o ...

Ignition system
NOTICE  - Iridium-tipped spark plugs Use only iridium-tipped spark plugs. Do not adjust the spark plug gap. ...